DOCSLIB.ORG

Unified Process

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Unified Process Information Systems Concepts Unified Process Roman Kontchakov Birkbeck, University of London Based on Chapter 3, 5 and 21 of Bennett, McRobb and Farmer: Object Oriented Systems Analysis and Design Using UML, (4th Edition), McGraw Hill, 2010 1 Outline n RUP / USDP n Section 3.4.1 (pp. 77 – 79) n Section 5.4 (pp. 128 – 135) n Section 21.3 (pp. 614 – 618) 2 Unified Process n Unified Software Development Process (USDP) n A public domain development methodology originally proposed by the same team (in Rational Software, 1999) who created UML n brought the Booch method, OMT and Objectory together n Large and complex n significant learning curve involved, or tailor to fit n Rational Unified Process (RUP) n Proprietary methodology owned by IBM (since 2003) n The most mature OO methodology to date n USDP has been largely superseded by RUP (though they are very similar in their main aspects) 3 Underlying Principles n Iterative n Incremental n Requirements (use case) driven n Component based n Architecture centric n Visual modelling techniques 4 UP is Use-Case Driven A use case is a single interaction between user and system. 5 Phases n Phases are organized along time Each phase consists of a number of iterations n Inception Phase n Determining the scope and purpose of the project n Elaboration Phase n Capturing the requirements n Determining the structure of the system n Construction Phase n Building the system n Transition Phase n Product installation and roll-out 6 Milestones n Phases matter to project managers n Phases are sequential and delineated by milestones n Manager’s focus shifts from one phase to the next Each milestone is a decision point – begin next phase or stop now? 7 Workflows n Workflows are organized along content n Each workflow consists of a group of activities n 5 main workflows Requirements Analysis Design Implementation Test n Workflows matter to developers 8 Main Activities n Requirements capture and modelling (use case model, requirements list, prototypes) n Requirements analysis (identify objects, communication diagrams) n System design (system architecture) n Class design (sequence and state diagrams, design class diagrams) n Interface design (interface specification, prototypes) n Data management design (database specification) n Construction n Testing n Implementation (installation) Phases and Workflows Inception Elaboration Construction Transition 1 2 3 4 5 6 7 8 Project Phases Requirements Analysis Iterations within each phase Design Size of square Implementation relative to the time spent on a workflow Test Workflows Phases v Workflows n Within each phase, activities iterate. n No set rule for the number of iterations. n Workflows within a phase are the same. n The balance of effort spent in each workflow varies from phase to phase n All phases run from requirements to testing, but emphasis changes. n At first, main effort is on capture, modeling, analysis of requirements. n Later phases emphasise implementation and testing. 11 UP v TLC or 2D v 1D n In a TLC project the phases and the Requirements Design Test workflows and activities are linked Analysis Implementation together Requirements n For example, in the Requirements phase only Requirements workflow Analysis activities are carried out; all Requirements work should be Design completed before work starts on Analysis. Implementation n In a Unified Process project the phases Test and the workflows/activities are independent with each other n For example, some Requirements work Another view of TLC may be happening alongside Analysis work. 12 Take Home Messages n Unified Process n Phases and Workflows n 2D Structure 13.
Load more

Recommended publications
  • Writing and Reviewing Use-Case Descriptions
    Bittner/Spence_06.fm Page 145 Tuesday, July 30, 2002 12:04 PM PART II WRITING AND REVIEWING USE-CASE DESCRIPTIONS Part I, Getting Started with Use-Case Modeling, introduced the basic con- cepts of use-case modeling, including defining the basic concepts and understanding how to use these concepts to define the vision, find actors and use cases, and to define the basic concepts the system will use. If we go no further, we have an overview of what the system will do, an under- standing of the stakeholders of the system, and an understanding of the ways the system provides value to those stakeholders. What we do not have, if we stop at this point, is an understanding of exactly what the system does. In short, we lack the details needed to actually develop and test the system. Some people, having only come this far, wonder what use-case model- ing is all about and question its value. If one only comes this far with use- case modeling, we are forced to agree; the real value of use-case modeling comes from the descriptions of the interactions of the actors and the system, and from the descriptions of what the system does in response to the actions of the actors. Surprisingly, and disappointingly, many teams stop after developing little more than simple outlines for their use cases and consider themselves done. These same teams encounter problems because their use cases are vague and lack detail, so they blame the use-case approach for having let them down. The failing in these cases is not with the approach, but with its application.
    [Show full text]
  • Document Title Requirements on Debugging in AUTOSAR
    Requirements on Debugging in AUTOSAR AUTOSAR Release 4.2.2 Document Title Requirements on Debugging in AUTOSAR Document Owner AUTOSAR Document Responsibility AUTOSAR Document Identification No 332 Document Classification Auxiliary Document Status Final Part of AUTOSAR Release 4.2.2 Document Change History Release Changed by Change Description 4.2.2 AUTOSAR Marked the document as obsolete Release Management 4.2.1 AUTOSAR Editorial changes Release Management 4.1.2 AUTOSAR Updated reference to RS feature document Release Editorial changes Management 4.1.1 AUTOSAR Updated the format of requirements according Administration to TPS_StandardizationTemplate Updated the chapters 2 and 5 Replaced Complex Device Driver by Complex Driver 3.1.5 AUTOSAR Initial release Administration 1 of 19 Document ID 332: AUTOSAR_SRS_Debugging - AUTOSAR confidential - Requirements on Debugging in AUTOSAR AUTOSAR Release 4.2.2 Disclaimer This specification and the material contained in it, as released by AUTOSAR, is for the purpose of information only. AUTOSAR and the companies that have contributed to it shall not be liable for any use of the specification. The material contained in this specification is protected by copyright and other types of Intellectual Property Rights. The commercial exploitation of the material contained in this specification requires a license to such Intellectual Property Rights. This specification may be utilized or reproduced without any modification, in any form or by any means, for informational purposes only. For any other purpose, no part of the specification may be utilized or reproduced, in any form or by any means, without permission in writing from the publisher. The AUTOSAR specifications have been developed for automotive applications only.
    [Show full text]
  • The Guide to Succeeding with Use Cases
    USE-CASE 2.0 The Guide to Succeeding with Use Cases Ivar Jacobson Ian Spence Kurt Bittner December 2011 USE-CASE 2.0 The Definitive Guide About this Guide 3 How to read this Guide 3 What is Use-Case 2.0? 4 First Principles 5 Principle 1: Keep it simple by telling stories 5 Principle 2: Understand the big picture 5 Principle 3: Focus on value 7 Principle 4: Build the system in slices 8 Principle 5: Deliver the system in increments 10 Principle 6: Adapt to meet the team’s needs 11 Use-Case 2.0 Content 13 Things to Work With 13 Work Products 18 Things to do 23 Using Use-Case 2.0 30 Use-Case 2.0: Applicable for all types of system 30 Use-Case 2.0: Handling all types of requirement 31 Use-Case 2.0: Applicable for all development approaches 31 Use-Case 2.0: Scaling to meet your needs – scaling in, scaling out and scaling up 39 Conclusion 40 Appendix 1: Work Products 41 Supporting Information 42 Test Case 44 Use-Case Model 46 Use-Case Narrative 47 Use-Case Realization 49 Glossary of Terms 51 Acknowledgements 52 General 52 People 52 Bibliography 53 About the Authors 54 USE-CASE 2.0 The Definitive Guide Page 2 © 2005-2011 IvAr JacobSon InternationAl SA. All rights reserved. About this Guide This guide describes how to apply use cases in an agile and scalable fashion. It builds on the current state of the art to present an evolution of the use-case technique that we call Use-Case 2.0.
    [Show full text]
  • INCOSE: the FAR Approach “Functional Analysis/Allocation and Requirements Flowdown Using Use Case Realizations”
    in Proceedings of the 16th Intern. Symposium of the International Council on Systems Engineering (INCOSE'06), Orlando, FL, USA, Jul 2006. The FAR Approach – Functional Analysis/Allocation and Requirements Flowdown Using Use Case Realizations Magnus Eriksson1,2, Kjell Borg1, Jürgen Börstler2 1BAE Systems Hägglunds AB 2Umeå University SE-891 82 Örnsköldsvik SE-901 87 Umeå Sweden Sweden {magnus.eriksson, kjell.borg}@baesystems.se {magnuse, jubo}@cs.umu.se Copyright © 2006 by Magnus Eriksson, Kjell Borg and Jürgen Börstler. Published and used by INCOSE with permission. Abstract. This paper describes a use case driven approach for functional analysis/allocation and requirements flowdown. The approach utilizes use cases and use case realizations for functional architecture modeling, which in turn form the basis for design synthesis and requirements flowdown. We refer to this approach as the FAR (Functional Architecture by use case Realizations) approach. The FAR approach is currently applied in several large-scale defense projects within BAE Systems Hägglunds AB and the experience so far is quite positive. The approach is illustrated throughout the paper using the well known Automatic Teller Machine (ATM) example. INTRODUCTION Organizations developing software intensive defense systems, for example vehicles, are today faced with a number of challenges. These challenges are related to the characteristics of both the market place and the system domain. • Systems are growing ever more complex, consisting of tightly integrated mechanical, electrical/electronic and software components. • Systems have very long life spans, typically 30 years or longer. • Due to reduced acquisition budgets, these systems are often developed in relatively short series; ranging from only a few to several hundred units.
    [Show full text]
  • Challenges and Opportunities for the Medical Device Industry Meeting the New IEC 62304 Standard 2 Challenges and Opportunities for the Medical Device Industry
    IBM Software Thought Leadership White Paper Life Sciences Challenges and opportunities for the medical device industry Meeting the new IEC 62304 standard 2 Challenges and opportunities for the medical device industry Contents With IEC 62304, the world has changed—country by country— for medical device manufacturers. This doesn’t mean, however, 2 Executive summary that complying with IEC 62304 must slow down your medical 2 Changes in the medical device field device software development. By applying best practices guid- ance and process automation, companies have a new opportunity 3 What is so hard about software? to improve on their fundamental business goals, while getting through regulatory approvals faster, lowering costs and deliver- 4 Disciplined agile delivery: Flexibility with more structure ing safer devices. 4 Meeting the specification: A look at some of the details This paper will explore what IEC 62304 compliance means for manufacturers in some detail, and also describe the larger con- text of systems and software engineering best practices at work 6 Process steps for IEC 62304 compliance in many of today’s most successful companies. 7 Performing the gap analysis Changes in the medical device field 8 Choosing software tools for IEC 62304 The IEC 62304 standard points to the more powerful role that software plays in the medical device industry. Once hardware 11 Conclusion was king. Older systems used software, of course, but it was not the main focus, and there wasn’t much of a user interface. Executive summary Software was primarily used for algorithmic work. Not to overly The recent IEC 62304 standard for medical device software is generalize, but the focus of management was on building causing companies worldwide to step back and examine their hardware that worked correctly; software was just a necessary software development processes with considerable scrutiny.
    [Show full text]
  • The Timeboxing Process Model for Iterative Software Development
    The Timeboxing Process Model for Iterative Software Development Pankaj Jalote Department of Computer Science and Engineering Indian Institute of Technology Kanpur – 208016; India Aveejeet Palit, Priya Kurien Infosys Technologies Limited Electronics City Bangalore – 561 229; India Contact: [email protected] ABSTRACT In today’s business where speed is of essence, an iterative development approach that allows the functionality to be delivered in parts has become a necessity and an effective way to manage risks. In an iterative process, the development of a software system is done in increments, each increment forming of an iteration and resulting in a working system. A common iterative approach is to decide what should be developed in an iteration and then plan the iteration accordingly. A somewhat different iterative is approach is to time box different iterations. In this approach, the length of an iteration is fixed and what should be developed in an iteration is adjusted to fit the time box. Generally, the time boxed iterations are executed in sequence, with some overlap where feasible. In this paper we propose the timeboxing process model that takes the concept of time boxed iterations further by adding pipelining concepts to it for permitting overlapped execution of different iterations. In the timeboxing process model, each time boxed iteration is divided into equal length stages, each stage having a defined function and resulting in a clear work product that is handed over to the next stage. With this division into stages, pipelining concepts are employed to have multiple time boxes executing concurrently, leading to a reduction in the delivery time for product releases.
    [Show full text]
  • Plantuml Language Reference Guide (Version 1.2021.2)
    Drawing UML with PlantUML PlantUML Language Reference Guide (Version 1.2021.2) PlantUML is a component that allows to quickly write : • Sequence diagram • Usecase diagram • Class diagram • Object diagram • Activity diagram • Component diagram • Deployment diagram • State diagram • Timing diagram The following non-UML diagrams are also supported: • JSON Data • YAML Data • Network diagram (nwdiag) • Wireframe graphical interface • Archimate diagram • Specification and Description Language (SDL) • Ditaa diagram • Gantt diagram • MindMap diagram • Work Breakdown Structure diagram • Mathematic with AsciiMath or JLaTeXMath notation • Entity Relationship diagram Diagrams are defined using a simple and intuitive language. 1 SEQUENCE DIAGRAM 1 Sequence Diagram 1.1 Basic examples The sequence -> is used to draw a message between two participants. Participants do not have to be explicitly declared. To have a dotted arrow, you use --> It is also possible to use <- and <--. That does not change the drawing, but may improve readability. Note that this is only true for sequence diagrams, rules are different for the other diagrams. @startuml Alice -> Bob: Authentication Request Bob --> Alice: Authentication Response Alice -> Bob: Another authentication Request Alice <-- Bob: Another authentication Response @enduml 1.2 Declaring participant If the keyword participant is used to declare a participant, more control on that participant is possible. The order of declaration will be the (default) order of display. Using these other keywords to declare participants
    [Show full text]
  • Descriptive Approach to Software Development Life Cycle Models
    7797 Shaveta Gupta et al./ Elixir Comp. Sci. & Engg. 45 (2012) 7797-7800 Available online at www.elixirpublishers.com (Elixir International Journal) Computer Science and Engineering Elixir Comp. Sci. & Engg. 45 (2012) 7797-7800 Descriptive approach to software development life cycle models Shaveta Gupta and Sanjana Taya Department of Computer Science and Applications, Seth Jai Parkash Mukand Lal Institute of Engineering & Technology, Radaur, Distt. Yamunanagar (135001), Haryana, India. ARTICLE INFO ABSTRACT Article history: The concept of system lifecycle models came into existence that emphasized on the need to Received: 24 January 2012; follow some structured approach towards building new or improved system. Many models Received in revised form: were suggested like waterfall, prototype, rapid application development, V-shaped, top & 17 March 2012; Bottom model etc. In this paper, we approach towards the traditional as well as recent Accepted: 6 April 2012; software development life cycle models. © 2012 Elixir All rights reserved. Keywords Software Development Life Cycle, Phases and Software Development, Life Cycle Models, Traditional Models, Recent Models. Introduction Software Development Life Cycle Models The Software Development Life Cycle (SDLC) is the entire Software Development Life Cycle Model is an abstract process of formal, logical steps taken to develop a software representation of a development process. SDLC models can be product. Within the broader context of Application Lifecycle categorized as: Management (ALM), the SDLC
    [Show full text]
  • Use Case Tutorial Version X.X ● April 18, 2016
    Use Case Tutorial Version X.x ● April 18, 2016 Company Name Limited Street City, State ZIP Country phone: +1 000 123 4567 Company Name Limited Street City, State ZIP Country phone: +1 000 123 4567 Company Name Limited Street City, State ZIP Country phone: +1 000 123 4567 www.website.com [Company Name] [Document Name] [Project Name] [Version Number] Table of Contents Introduction ..............................................................................................3 1. Use cases and activity diagrams .......................................................4 1.1. Use case modelling ....................................................................4 1.2. Use cases and activity diagrams ..................................................7 1.3. Actors .......................................................................................7 1.4. Describing use cases.................................................................. 8 1.5. Scenarios ................................................................................10 1.6. More about actors ....................................................................13 1.7. Modelling the relationships between use cases ...........................15 1.8. Stereotypes .............................................................................15 1.9. Sharing behaviour between use cases........................................ 16 1.10. Alternatives to the main success scenario ..................................17 1.11. To extend or include? ...............................................................20
    [Show full text]
  • User-Stories-Applied-Mike-Cohn.Pdf
    ptg User Stories Applied ptg From the Library of www.wowebook.com The Addison-Wesley Signature Series The Addison-Wesley Signature Series provides readers with practical and authoritative information on the latest trends in modern technology for computer professionals. The series is based on one simple premise: great books come from great authors. Books in the series are personally chosen by expert advi- sors, world-class authors in their own right. These experts are proud to put their signatures on the cov- ers, and their signatures ensure that these thought leaders have worked closely with authors to define topic coverage, book scope, critical content, and overall uniqueness. The expert signatures also symbol- ize a promise to our readers: you are reading a future classic. The Addison-Wesley Signature Series Signers: Kent Beck and Martin Fowler Kent Beck has pioneered people-oriented technologies like JUnit, Extreme Programming, and patterns for software development. Kent is interested in helping teams do well by doing good — finding a style of software development that simultaneously satisfies economic, aesthetic, emotional, and practical con- straints. His books focus on touching the lives of the creators and users of software. Martin Fowler has been a pioneer of object technology in enterprise applications. His central concern is how to design software well. He focuses on getting to the heart of how to build enterprise software that will last well into the future. He is interested in looking behind the specifics of technologies to the patterns, ptg practices, and principles that last for many years; these books should be usable a decade from now.
    [Show full text]
  • Multi Objective Analysis for Timeboxing Models of Software Development
    MULTI OBJECTIVE ANALYSIS FOR TIMEBOXING MODELS OF SOFTWARE DEVELOPMENT Vassilis C. Gerogiannis and Pandelis G. Ipsilandis Department of Project Management, Technological Education Institute of Larissa, Larissa, Greece Keywords: Software Project Management, Iterative Development, Timeboxing, Project Scheduling, Linear Programming, Multi-Objective Optimization. Abstract: In iterative/incremental software development, software deliverables are built in iterations - each iteration providing parts of the required software functionality. To better manage and monitor resources, plan and deliverables, iterations are usually performed during specific time periods, so called “time boxes”. Each time box is further divided into a sequence of stages and a dedicated development team is assigned to each stage. Iterations can be performed in parallel to reduce the project completion time by exploiting a “pipelining” concept, that is, when a team completes the tasks of a stage, it hands over the intermediate deliverables to the team executing the next stage and then starts executing the same stage in the next iteration. In this paper, we address the problem of optimizing the schedule of a software project that follows an iterative, timeboxing process model. A multi objective linear programming technique is introduced to consider multiple parameters, such as the project duration, the work discontinuities of development teams in successive iterations and the release (delivery) time of software deliverables. The proposed model can be used to generate alternative project plans based on the relative importance of these parameters. 1 INTRODUCTION team of experts is usually assigned to each stage, i.e., a team for a stage performs only the activities In iterative and incremental development, software for that stage.
    [Show full text]
  • UNIT 1 UML DIAGRAMS Introduction to OOAD – Unified Process
    VEL TECH HIGH TECH Dr. RANGARAJAN Dr. SAKUNTHALA ENGINEERING COLLEGE UNIT 1 UML DIAGRAMS Introduction to OOAD – Unified Process - UML diagrams – Use Case – Class Diagrams– Interaction Diagrams – State Diagrams – Activity Diagrams – Package, component and Deployment Diagrams. INTRODUCTION TO OOAD ANALYSIS Analysis is a creative activity or an investigation of the problem and requirements. Eg. To develop a Banking system Analysis: How the system will be used? Who are the users? What are its functionalities? DESIGN Design is to provide a conceptual solution that satisfies the requirements of a given problem. Eg. For a Book Bank System Design: Bank(Bank name, No of Members, Address) Student(Membership No,Name,Book Name, Amount Paid) OBJECT ORIENTED ANALYSIS (OOA) Object Oriented Analysis is a process of identifying classes that plays an important role in achieving system goals and requirements. Eg. For a Book Bank System, Classes or Objects identified are Book-details, Student-details, Membership-Details. OBJECT ORIENTED DESIGN (OOD) Object Oriented Design is to design the classes identified during analysis phase and to provide the relationship that exists between them that satisfies the requirements. Eg. Book Bank System Class name Book-Bank (Book-Name, No-of-Members, Address) Student (Name, Membership No, Amount-Paid) OBJECT ORIENTED ANALYSIS AND DESIGN (OOAD) • OOAD is a Software Engineering approach that models an application by a set of Software Development Activities. YEAR/SEM: III/V CS6502-OOAD Page 1 VEL TECH HIGH TECH Dr. RANGARAJAN Dr. SAKUNTHALA ENGINEERING COLLEGE • OOAD emphasis on identifying, describing and defining the software objects and shows how they collaborate with one another to fulfill the requirements by applying the object oriented paradigm and visual modeling throughout the development life cycles.
    [Show full text]