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Atern v2 – Summary of changes from v1
The evolution continues! Atern v2 Changes
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Summary of v2 changes “Core” Atern defined
DSDM / Atern Changes Summary of v2 changes “Core” Atern defined “What someone needs to know in order to use Atern on a ‘typical’ project within an organisation that is open to the concept of Atern’s time-driven, business focused delivery of solutions.” This gives the focus for training and exams Production of Atern Handbook “Core” as main chapters Additional useful detail in Appendices Appendices content not part of exam syllabus Alignment of web published content to Handbook Web e-book, better format for web later? Updated version of Pocketbook Atern v2 Changes
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Summary of v2 changes (More details later in presentation)
DSDM / Atern Changes Summary of v2 changes (More details later in presentation) Major revamp of products Removal of “generic” guidance, better focus on Atern and agile issues E.g. Risk, Estimating, Requirements, Testing New area – Preparation Encompasses Factors Instrumental for Atern Success (DSDM 4.2 CSFs brought up to date) Iterative Development and Timeboxing Rationalised and clarified New Testing Concepts – now fully agile New chapters – Planning, Control, Project Management, CM Atern v2 Changes
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New Section – Atern Rationale
DSDM / Atern Changes New Section – Atern Rationale Detailed information on the Rationale for using Atern Specific problems addressed by Atern Key points defined in core Full details in Appendix Atern v2 Changes
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DSDM / Atern Changes V2 Change - Principles Principles 5 and 6 swapped – more logical sequence Some lower level bullets re-organised or moved Focus on the business need Deliver on time Collaborate Never compromise on quality Build incrementally from firm foundations Develop iteratively Communicate continuously and clearly Demonstrate control Atern v2 Changes
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New Section - Preparation
DSDM / Atern Changes New Section - Preparation Factors instrumental to the success of Atern projects (ISFs) Acceptance of Atern philosophy Appropriate empowerment of Solution Development Team Commitment to provide necessary Ambassador (and Advisor) involvement Incremental delivery Access by Solution Development Team to business roles Solution Development Team Stability Skills Size Supportive commercial relationship Atern feedback suggested CSFs from 4.2 were missed Atern v2 Changes
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V2 Change - Products Major revamp
DSDM / Atern Changes V2 Change - Products Major revamp V1 feedback – too many, too complex, perception - very un-agile External facing product set now much cleaner 17 products (less than 4.2!) This set to be used for presentations, training Atern v2 Changes
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DSDM / Atern Changes V2 Change - Products Core provides introduction and suggested composition for all 17 products Full and extensive product detail available in Appendix Introduction Purpose Quality Criteria Roles Involved Usage by lifecycle phase Appendix breaks some products down into component parts E.g. Solution Foundations Business Area Definition (BAD) ** NB This is now a Solution product ** System Architecture Definition (SAD) Development Approach Definition (DAD) Solution Prototype Lowest detail designed for use by those involved in that product Atern v2 Changes
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V2 Change - Amendments Facilitation - Some amendments
DSDM / Atern Changes V2 Change - Amendments Facilitation - Some amendments E.g. clarification between co-facilitator and workshop scribe MoSCoW – minor changes Modelling – some amendments Removal of some “generic” guidance Introduction of graphics Atern v2 Changes
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V2 Change - Amendments Iterative Development and Timeboxing
DSDM / Atern Changes V2 Change - Amendments Iterative Development and Timeboxing Rationalised and improved Emphasis put on Development Timeboxes Project and Increment Timebox concept as secondary Complexities of “Product Timebox” removed from core Now treated as a specialist topic Horizontal, Vertical and Combined approaches fully detailed Perspectives amended Functional Usability Non-functional ** Capability / Technique prototype still exists as a separate concept, as a true prototype / proof of concept / spike Atern v2 Changes
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DSDM / Atern Changes V2 Change - Amendments Configuring the Lifecycle for Evolution – enhanced Also addresses scalability Requirements Some “generic” guidance removed Specific concept of UTH removed Improved graphic to show relationship between requirement detail and estimating accuracy Atern v2 Changes
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V2 Change - Amendments Estimating Some “generic” guidance removed
DSDM / Atern Changes V2 Change - Amendments Estimating Some “generic” guidance removed Improved graphic to show relationship between requirement detail and estimating accuracy Concept of BARMAI introduced Range indicating estimate confidence Atern v2 Changes
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New Section - Planning Detailed information on evolutionary planning
DSDM / Atern Changes New Section - Planning Detailed information on evolutionary planning Planning throughout the lifecycle Planning products in context – new graphic Atern v2 Changes
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DSDM / Atern Changes New Section - Control Detailed information on controlling Atern projects Control at top level through control of Development Timeboxes New graphic Atern v2 Changes
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New Section – Project Management
DSDM / Atern Changes New Section – Project Management Detailed information on managing Atern projects Managing Monitoring Motivating Business involvement Escalation Atern v2 Changes
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V2 Change - Amendments Risk Configuration Management
DSDM / Atern Changes V2 Change - Amendments Risk Some “generic” guidance removed Now specifically addresses Atern risks Configuration Management Detail re-introduced Related to Atern Principles People aspects explained CM strategy discussed Atern v2 Changes
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V2 Change - Amendments Testing
DSDM / Atern Changes V2 Change - Amendments Testing Whole topic now focuses on Atern and agile issues New set of 8 Testing Concepts introduced Fail Fast Collaborative testing Repeatable tests End-2-End experience Independent testing Prioritised tests Test driven development Risk based testing Detail of test products and testing roles Business and Solution domain Atern v2 Changes
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