Cloud Data Services Sdks Twitter: @Xpqz

Offline First: The key to a great app experience

Stefan Kruger (stefan.kruger@uk.ibm.com) Offerings Management IBM Cloud Data Services SDKs Twitter: @xpqz

(2014) 60% of The number of The number of large companies custom mobile enterprise mobile used 3 or fewer apps will double apps is expected mobile apps1 compared to 20142 to quadruple3

85% of companies Mobile app More than half have a mobile development will of b2e apps will backlog of up outnumber PC be created by to 20 apps4 projects 4:15 the enterprise6

2014 2016 2018

“Mobile app users are demanding. If my app is not delivering a great experience, I need to know.”

“Mobile opens up a new set of security considerations. Our reputation is on the line”

“My users want to be even more productive. Personalization based on devices’ context is a huge opportunity.”

“I need my development teams focused on creating great app experiences, not figuring out how to store, integrate or scale data.”

Continuous Security Contextualization Data improvement personalization

App aspect

They require constant user Outside the network’s Mobile apps must Mobile speed and scale Hard feedback, monitoring and protection, mobile apps capture, interpret and requires new integration because release of revisions and data require specific act on disparate context and database approaches governance sources in real time for app developers

Platform services to IBM MobileFirst Platform delivers rich services and then integrates them for enable your an end-to-end experience for mobile developers and operations teams apps

Continuous Security Contextualization Data improvement personalization

Quality Assurance Application Scanning Presence Insights Cloudant Data Layer • Sentiment analysis • Development-time • Multi-sensor indoor user • Sync • In-app feedback vulnerability detection engagement • Fully managed • Crash analytics • Scalable, distributed NoSQL data store Mobile Client Access Push Notifications • Analytics • Social login

Foundation (On-premises, IaaS, PaaS)

• Native and hybrid • Runtime application security • Push notifications • Mobile-optimized development • Remote application control • Outdoor and indoor enterprise integration • Ops analytics • Flexible authentication integration location detection, and sync • Problem determination triggering, and rules • Cloudant local license and troubleshooting • Version enforcement • Application catalog

“The ability to work offline is the most important and difficult mobile feature and will be a consideration for nearly every modern application”

— Forrester Research

+ Typical app architecture: app cannot function without live access to its backend.

+ Irritating to use!

Mobile app

Mobile data Master data store

+ Instead, sync data to on-device database.

+ Let app talk only to local DB.

Mobile app Master data store

Device DB Data sync to device DB

+ Data can be changed by many devices simultaneously!

+ Data can be changed by other actors external to the app.

+ How do we reconcile changes and keep everything in sync?

+ IBM Cloudant Data Layer was designed specifically for replication

+ All nodes are equal: no master, no slave

+ No single node is the “source of truth” – they all are.

+ Cloudant is designed to handle network partitions

+ Cloudant already deals with the the “offline first” problem internally

+ Adding a device DB as a new in the cluster solves the sync problem “for free”

Device DB becomes a replicating node in the cloud cluster

Push replication Pull replication

id: 1 id: 1 id: 1 rev: 3a rev: 4a rev: 5a id: 1 id: 1 rev: 1 rev: 2

id: 1 id: 1 id: 1 rev: 3b rev: 4b rev: 5b

+ The cluster will respond even when partitioned

+ Once partition heals, cluster will converge

+ …but may be in a conflicted state

You cannot safely read your writes back.

3 Unstructured & Semi-Structured Data

2 Text, Log Files, Click Streams, Blogs, Tweets, Audio, Video, etc.

Structured Data Trillions of Gigabytes (Zettabytes) Gigabytes of Trillions

0 2000 2007 2014

http://www.couchbase.com/nosql-resources/what-is-no-sql

+ No schema: easily accommodate new types of data

+ Database not disrupted by data structure changes

+ Natural format for unstructured or semi-structured data

JSON objects

object

{ string : value }

Simon Wheatcroft link: https://www.youtube.com/watch?v=IFnqBtLNoPY

Case study link: http://www-01.ibm.com/common/ssi/cgi- bin/ssialias?subtype=AB&infotype=PM&appname=SWGE_IM_DM_USEN&htmlfid=IMC14925USEN&attachment=IMC14925USEN.PDF#loaded

Hybrid

Private Public

#sleepmore

+ Native libraries for iOS and Android, providing sync, conflict resolution and a rich query language.

+ Cordova wrappers for hybrid.

+ Fully open source, hosted on github.com/cloudant

+ Thriving community. Millions of requests per day generated from our libraries.

CDTDatastoreManager *manager = [[CDTDatastoreManager alloc] initWithDirectory:path error:&error];

datastore = [manager datastoreNamed:@"my_datastore" error:&error];

[datastore ensureIndexed:@[@"_id"] withName:@"all"];

replicatorFactory = [[CDTReplicatorFactory alloc] initWithDatastoreManager:manager];

+ Keep a subset of your data on device

+ Sync when connectivity allows, but interact with the local database

+ Store data as JSON: no upfront rigid schema

+ Home your data where it makes the most sense: • Close to your users, in the cloud • Inside your own data center, for governance or security • …or a combination

+ Cloud-based document data store built for replication

+ Global data centers

+ Highly scalable and fully managed (if so desired)

+ Mobile libraries act as a cluster node

+ Native sync libraries for iOS and Android

+ Data at rest encryption

+ Data in flight always over a secure channel

IBM MobileFirst Platform (ibm.biz/MFPlatform)

+ Get started today with IBM MobileFirst Platform https://developer.ibm.com/mobilefirstplatform/documentation/getting-started-7-1/

+ Try our free IBM MobileFirst Platform trial on Bluemix https://console.ng.bluemix.net/catalog/ibm-mobilefirst-starter/

+ Try our free IBM Cloudant trial https://cloudant.com/sign-up/

Continuous Security Contextualization Data improvement personalization

Foundation (On-premises, IaaS, PaaS)

Stefan Kruger ([email protected]) Offerings Management, IBM Cloud Data Services SDKs

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