SOFTWARE DEVELOPMENT METHODOLOGIES Methodologies

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SOFTWARE DEVELOPMENT METHODOLOGIES Methodologies • Waterfall • Prototype model • Incremental • Iterative • Spiral • RAD Waterfall • Sequential design process • Progress is seen as flowing steadily downwards (like a waterfall) through SDLC Prototyping • Creating prototypes of software applications i.e. incomplete versions of the software program being developed • A prototype typically simulates only a few aspects of, and may be completely different from, the final product. Incremental Build Model • The model is designed, implemented and tested incrementally (a little more is added each time ). • Finished when satisfies all the requirements. • Combines the elements of the waterfall model with the iterative philosophy of prototyping. Iterative and Incremental Development • Iterative and incremental development is any combination of both iterative design or iterative method and incremental build model for development. Incremental vs. Iterative A Bit Different Understanding Effort in Iterative Development Spiral Model • Combining elements of design and prototyping- in-stages • Combines the features of the prototyping and the waterfall model • The spiral model is intended for large, expensive and complicated projects • Advantages of top-down and bottom-up concepts RAD • Minimal planning and fast prototyping. • Developing instead of planning • The lack of pre- planning generally allows software to be written much faster, and makes it easier to change requirements. Agile • Group of software development methods • Based on iterative and incremental development • Most important phrases • self -organizing, cross - functional teams • adaptive planning, • evolutionary development and delivery, • a time-boxed iterative approach, • rapid and flexible response to change. • A conceptual framework • The Agile Manifesto in 2001..

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Order No. 31310019F0149 Under Contract No. GS35F192BA
2 of 27 19. 20. 21. 22. 23. 24. ITEM NO. SCHEDULE OF SUPPLIES/SERVICES QUANTITY UNIT UNIT PRICE AMOUNT Funded: $702,432.93 Accounting Info: Funded: $40,981.86 Accounting Info: Funded: $347,917.46 10001 Option Period 1 Ceiling Price 0.00 See Attachment 1 for Authorized Labor Categories and Fixed Hourly Rates Amount: $1,059,977.13(Option Line Item) Anticipated Exercise Date09/30/2020 Period of Performance: 10/01/2020 to 09/30/2021 20001 Option Period 2 Ceiling Price 0.00 See Attachment 1 for Authorized Labor Categories and Fixed Hourly Rates Amount: $847,176.84(Option Line Item) Anticipated Exercise Date09/30/2021 Period of Performance: 10/01/2021 to 09/30/2022 The obligated amount of award: $1,091,332.25. The total for this award is shown in box 26. 32a. QUANTITY IN COLUMN 21 HAS BEEN RECEIVED INSPECTED ACCEPTED, AND CONFORMS TO THE CONTRACT, EXCEPT AS NOTED: 32b. SIGNATURE OF AUTHORIZED GOVERNMENT REPRESENTATIVE 32c. DATE 32d. PRINTED NAME AND TITLE OF AUTHORIZED GOVERNMENT REPRESENTATIVE 32e. MA LING ADDRESS OF AUTHORIZED GOVERNMENT REPRESENTATIVE 32f. TELEPHONE NUMBER OF AUTHORIZED GOVERNMENT REPRESENTATIVE 32g. E-MA L OF AUTHORIZED GOVERNMENT REPRESENTATIVE 33. SHIP NUMBER 34. VOUCHER NUMBER 35. AMOUNT VERIFIED 36. PAYMENT 37. CHECK NUMBER CORRECT FOR COMPLETE PARTIAL FINAL PARTIAL FINAL 38. S/R ACCOUNT NUMBER 39. S/R VOUCHER NUMBER 40. PAID BY 41a. I CERTIFY THIS ACCOUNT IS CORRECT AND PROPER FOR PAYMENT 42a. RECEIVED BY (Print) 41b. SIGNATURE AND TITLE OF CERTIFY NG OFFICER 41c. DATE 42b. RECEIVED AT (Location) 42c.
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