Lecture Software process improvement: Lesson 30B provide students with knowledge about: software baselines; the development of software; software benchmarks; baselines collect similar data; baselines collect quantitative;... Please refer to the detailed content of the lecture!
Trang 1Lecture # 30B
Trang 2• A baseline is a milestone in the
development of software
• Software benchmarks and baselines collect similar data
• Baselines compare a company against its
own history for several years in the past
Trang 3• Baselines collect quantitative and
topics, including investments, staffing
levels, development schedules, staff efforts, costs, quality, and customer satisfaction
Trang 4• Software baselines are normally used as a starting points when beginning process
improvement programs
• Accurate baseline provides a firm
quantitative basis for productivity,
schedules, costs, quality, and user
satisfaction to judge rate of improvement
Trang 5• Another very common use of baselines is when outsource agreements include a
contractual obligation for the vendor to
improve quality or productivity
• Baselines are technically very challenging and difficult to create with acceptable
accuracy
Trang 6• This is because most companies do not
routinely collect accurate quality and
productivity data. In fact most companies
don’t even collect accurate cost data on how much they spend on software projects
Trang 7• In addition to the fact that the effort and
costs for many activities are incomplete,
there are several other significant cost
elements that are seldom recorded at all
• One of the most important missing pieces of information is the amount of unpaid
overtime applied to software projects. This
is very important factor for international
software comparisons
Trang 8• Another missing piece of information is the work that software clients themselves
perform during development cycles
Trang 9• Because leakage is so common, initial
baselines are often very unrealistic
• For example, if a software organization’s
actual productivity is 5.0 FPs per staff
months but their cost tracking system only captures lowlevel design, coding, and
testing costs, their apparent productivity
might look like 15.0 FPs per staff months
Trang 10• Many software cost tracking systems omit
requirements, highlevel design, project
management, creation of user manuals and
documents, and the work of specialists in areas such as software quality assurance, database
administration, change control, and
administrative support
• Sometimes, the activities omitted actually
Trang 11• The bottom line is that the baselines are
very challenging to create well and
accurately
• If they are going to serve a purpose in
contracts between outsource vendors and
clients without leading to litigation, then
baselines need to be accurate and reliable
Trang 12Summary
Trang 13• Software Assessments, Benchmarks, and
Best Practices by Capers Jones (Chapter 3)