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02 |
Define an Effective End
-
to
-
End Software
Development Lifecycle

Steven Borg | Co
-
founder & Strategist, Northwest Cadence

Anthony
Borton | ALM Consultant, Enhance
ALM


Understand the value of an end
-
to
-
end view of Application
Lifecycle Management (ALM) tools and practices


Explain the benefits of fast feedback


Implement strategies to reduce end
-
to
-
end cycle time


Implement strategies to improve software quality


Implement strategies to reduce waste


Create a process improvement plan

Module Overview

Tips


This section is all about attitude and mindset, not knowing
specific details.


Having the right mindset will get you through nearly all of the
questions, without having to focus on specific technical details.


Microsoft

Virtual
Academy

Understand the value of an end
-
to
-
end
view of Application Lifecycle
Management (ALM) tools and practices

What the Study Guide says…


Understand the value of an end
-
to
-
end view of Application
Lifecycle Management (ALM) tools and practices.


understanding that an observable problem may be indicative of a
more general process issue


explaining the difference between optimizing a piece of the ALM
process such as manual testing and optimizing the entire ALM process



Work Item Traceability and Flow

Value delivery impediments

Team barriers =

Value delivery impediments

| |

Teams without barriers deliver continuous value

Continuous
value delivery


Faster cycle times

Visual Studio ALM

Teams without barriers. Continuous value delivery


Realized value opportunities

Deliver

Microsoft

Virtual
Academy

Explain the benefits of fast feedback

What the Study Guide says…


Explain the benefits of fast feedback.


explaining the importance of fast feedback related to communicating
requirements


explaining the benefits of end customer feedback to early software
iterations



Feedback Loops

Measure

Adjust

Feedback Loops

Measure

Problems with Slow Feedback


Introduce more work into the system


Long time between code and bug fix makes it harder for developer


Long time between
bug find and
bug
fix verification makes
it harder for
the tester


Added complexity


More context switching


Lowers overall productivity









New Tools to speed feedback


Requirements
-

PowerPoint Storyboarding


Customer Feedback
-

Feedback Client


PowerPoint Storyboards

Feedback Client

Microsoft

Virtual
Academy

Implement strategies to reduce end
-
to
-
end cycle time

What the Study Guide says…


Implement strategies to reduce end
-
to
-
end cycle time.


identifying bottlenecks in the delivery process


understanding
the relationship between work in process (WIP) and
cycle
time


identifying
metrics that highlight bottlenecks


creating potential solutions whose effectiveness can be validated


Identifying Bottlenecks

DEMO

Microsoft

Virtual

Academy

Relationship between Work in Process and Cycle Time

Little’s Law
(
Two Minutes of Math)

Delivery
Rate =
Work
-
in
-
Progress
÷

Lead
Time

implies

Lead Time =
Work
-
in
-
Progress
÷

Delivery
Rate


thus


WIP is a LEADING metric

for Lead Time

Key metrics for identifying bottlenecks


Leading indicators


Queue sizes


Batch Sizes


Lagging indicators


Velocity


Other metrics:


Rework
costs


Bug
trends


Pay Attention to Queues

CLOSE Attention to Queues

Microsoft

Virtual
Academy

Implement strategies to improve
software quality

What the Study Guide says…


Implement strategies to improve software quality.


identifying process steps that introduce defects


understanding the end
-
to
-
end quality process


bringing quality efforts early in the development cycle



Conventional QA in the Modern app lifecycle


QA

Testing post

implementation. Mostly

manual with limited

automation.

UAT

UAT post

implementation

and systems

testing



Operations

readiness
verification

Pre
-
deployment


verification



Document requirements

as BRDs and

functional specs

Write code to

implement

requirements

Continuous quality

Shortened cycle times


User

Interface

Services

Business Processes

Business Rules and Logic

Service integrations

Data access

Identity

Data

Automated testing

Manual testing

Automated testing

Microsoft

Virtual
Academy

Implement strategies to reduce
waste

What the Study Guide says…


Implement strategies to reduce waste.


identifying wasteful activities


creating strategies to eliminate waste


measuring the effectiveness of waste removal activities



What is waste?


Inventory

-

Incomplete work. Work not in production


Overproduction

-

Rarely used features


Processing



Unneeded or excessive documentation / Looking for data


Transport



Handovers, context switching


Excessive Motion
-

Task
Switching (Working on several projects in parallel,
20% loss)


Waiting

-

Delays (caused by large batches, or too much work
-
in
-
process)


Rework due to defects
-

Bugs

Dealing with Waste


Finding Waste:


Look for delays or bottlenecks in your software development.


Work backward to identify the cause.


The cause is likely wasteful.


Eliminating Waste:


Depends…


Likely, focus on continuous improvement and cycle time reduction


Key metrics:


Cycle time reduction


Rework costs


Bug trends

Microsoft

Virtual
Academy

Create a process improvement plan

What the Study Guide says…


Create a process improvement plan.


creating strategies for implementing organizational change


identifying key metrics to be tracked during the improvement effort


creating consensus for the change



Key metrics


Business value


Rework costs


Cycle time


Bug trends


Queue sizes


Batch Sizes


Visit
http://www.visualstudio.com/alm

for an overview of the
theory, and how theory aligns with the Visual Studio tools


Focus on reducing cycle time, speeding feedback, small batch
sizes, breaking down barriers, fast communication, minimally
viable products and building quality in


If you’re not convinced focusing on completing things faster with
high quality is the most important thing, fake it for the test.


For tools, understand Storyboarding and the Feedback Client




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ros
oft Corporation as of the date of this presentation. Because Microsoft
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ros
oft cannot guarantee the accuracy of any information provided after
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ESE
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