Tag Archives: Software measurement

QSM (Quantitative Software Management) 2014 Research Almanac Published this week!


Over the years I’ve been privileged to have articles included in compendiums with industry thought leaders whose work I’ve admired.  This week, I had another proud moment as my article was featured in the QSM Software Almanac: 2014 Research Edition along with a veritable who’s who of QSM.

This is the first almanac produced by QSM, Inc. since 2006, and it features 200+ pages of relevant research-based articles garnered from the SLIM(R) database of over 10,000 completed and validated software projects.

Download your FREE copy of the 2014 Almanac by clicking this link or the image below.

almanac

Latest installment of Ask Carol: With Software Sizing, If You Don’t Know the What, You Can’t Estimate the How


One of the biggest (and not so obvious) reasons that software estimation goes awry is that amateur estimators don’t always realize how important it is to figure out the “object of estimation” – that is, what it is that we want to estimate. 

I’ve addressed this issue on several occasions – through a set of 4 blog posts called “First see the elephant in the room (the what you are estimating…)”

This week, I did a blog post for QSM, Inc. on the same topic.  Let me know what you think.

21 if you dont know the whathttp://www.qsm.com/blog/2014/ask-carol-software-sizing-if-you-dont-know-what-you-cant-estimate-how

What’s the Point of Estimating?


Here’s the latest installment of my QSM Ask Carol blog:

Point of estimating

“What’s the Point of (Early) Estimating?”  … click on the image or the title here to read the full blog post.

-Carol

Latest installment of “Ask Carol: Sizing Alternatives when Cost is an Issue”


Happy new year 2014!

I present you with the latest installment of the Software Professional’s advice column I pen for QSM, Inc. called “Dear Carol” (click here also for the direct link)

Ask carol - Sizing alternatives when cost is an issue

Enjoy!  Comments are always appreciated and welcome. What do you think of this post?

Carol

Latest installment of Ask Carol: No matter What… in Project Management, Size Matters


Just wanted to share with you my latest installment on the QSM website blog – My Dear Carol advice column.  Enjoy!

Ask Carol - size matters

Here is the link to the rest of the article:  http://www.qsm.com/blog/2013/ask-carol-no-matter-what-project-management-size-matters

Fundamentals of Software Metrics in Two Minutes or Less


 

Fundamentals of SW Metrics in two minutes or lessTo read more click on the link:
http://www.qsm.com/blog/2013/fundamentals-software-metrics-two-minutes-or-less

What Can Goldilocks Teach about Software Estimating?


goldilocks

http://www.qsm.com/blog/2013/what-can-goldilocks-teach-about-software-estimating

Comments?

Estimating Before Requirements with Function Points and Other Metrics… Webinar Replay


On June 7, 2012, I conducted an hour-long webinar on “Estimating Before Requirements with Function Points and Other Metrics” before a worldwide audience spanning a myriad of software development specialties/industries and across many countries.

In the event that you missed the live webinar or would like to listen/view the replay, it is available (at no charge) at http://www.qsm.com/Webinars/Estimating-before-Requirements

At the end of the webinar, I offered to send attendees several papers (also downloadable from this link) as well as a Scope Management primer.  If you are interested, please send an email to me at: dekkers (at) qualityplustech (dot) com.

Let me know what you think of the concepts and the webinar!

Carol

Trust and Verify are the (IT) Elephants in the room


As a party involved in some aspect of software development, why do you think projects are so hard?  Millions of dollars in research work to solve this question, with the result being new models, agile approaches and standards, all intended to streamline software development.

What do you think is the core reason for project success or failure?  Is it the people, process, requirements, budgets, schedule, personalities, the creative process or some combination?

Sure, IT (information technology) is a relatively new industry, plagued by technology advances at the speed of light, industries of customers and users who don’t know what they want, budgets are preset, schedules are imposed, scope is elusive, and, ultimately computer scientists and customers still speak their own language.  Some people argue that it boils down to communication (especially poor communication).  After all, isn’t communication the root cause of all wars, disputes, divorces, broken negotiations, and failed software projects?

I disagree.

I believe that TRUST and VERIFY are THE TWO most important factors in software development

These two elements are the IT elements in the room (so to speak!) I could be wrong, but it seems like the commonly cited factors (including communication) are simply symptoms of the elephants in the room – and no one is willing to talk about them.  Instead, we bring in new methodologies, new tools intended to bring customers and suppliers together, new approaches, and new standards – and all of these skirt the major issues: TRUST and VERIFY.

Why are these so critical?

Trust is the difference between negotiation and partnership – trust implies confidence,  a willingness to believe in (an)other, the assurance that your position and interests are protected, and the rationale that when life changes, the other party will understand and work with you. A partnership means that there is an agreement to trust in a second party and to give trust in return.  Trust is essential in software development.

BUT… many a contract and agreement have gone wrong with blind trust, and that is why VERIFY is as important as trust. Verify means to use due diligence to make sure that the trust is grounded in fact by using knowledge, history, and past performance as the basis.  Verify grounds trust, yet allows it to grow.

President Ronald Reagan coined the phrase “Trust, but Verify” – but I believe it is better stated as “Trust and Verify” because the two reinforce each other.  This also suggests the saying:  “Fool me Once, Shame on You… Fool me Twice, Shame on Me.”

Proof that Trust and Verify are the Elephants in the Room

Software development has a history of dysfunctional behavior built on ignoring that Trust and Verify are key issues. It is easier for both the business (customers) and the engineers (suppliers) to pretend that they trust each other than address the issues once and for all.  To admit to a lack of trust is tantamount to declaring war and accusing your “partners” of espionage.  It simply is not done in the polite company of corporate boardrooms.  And so we do the following:

  • Fixed price budgets are set before requirements are even known because the business wants to lower their risk (and mistrust);
  • Software development companies “pad” their estimates with generous margins to decrease their risk that the business doesn’t know what they want (classic mistrust);
  • Deadlines are imposed by the business based on gut-feel or contrived “drop dead” dates to keep the suppliers on track;
  • Project scope is mistakenly expressed in terms of dollars or effort (lagging metrics) instead of objective sizing (leading metrics);
  • Statements like “IT would be so much easier if we didn’t have to deal with users” are common;
  • Games like doubling the project estimate because the business will chop it in half become standard;
  • Unrealistic project budgets and schedules are agreed to to keep the business;
  • Neither side is happy about all the project meetings (lies, more promises, and disappointment).

Is IT doomed?

Trust is a critical component of any successful relationship involving humans (one might argue that it is also critical when pets are involved) – but so too is being confident in that trust (verify).  Several promising approaches address trust issues head on, and provide project metrics along the way to ensure that the trust remains.

One such approach is Kanban (the subject of this week’s Lean Software and Systems Development conference LSSC12 in Boston, MA).

Kanban for software and systems development was formalized by David Anderson and has been distilled into a collaborative set of practices that allow the business and software developers to be transparent about software development work – every step of the way.  Project work is prioritized and pulled in to be worked on only as the volume and pace (velocity) of the pipeline can accommodate.  Rather than having the business demand that more work be done faster, cheaper and better than is humanly possible (classic mistrust that the suppliers are not working efficiently), in Kanban, the business works collaboratively with the developers to manage (and gauge) what is possible to do and the pipeline delivers more than anticipated.  Trust and verify in action.

Another promising approach is Scope Management (supported by a body of knowledge and a European based certification) – a collaborative approach whereby software development effort is done based on “unit pricing”.  Rather than entertaining firm, fixed price, lose-lose (!!!) contracts where the business wants minimum price/maximum value and the supplier need to curtail changes to deliver within the fixed price (and not lose their shirts), unit pricing actually splits a project into known components can are priced similarly to how home construction can be priced by square foot and landscaping priced by the number of trees.

In Scope Management (see www.qualityplustech.com and www.fisma.fi for more details or send me an email and I’ll send you articles), the business retains the right to make changes and keep the reins on the budget and project progress and the supplier gets paid for the work that the business directs to be done.  Project metrics and progress metrics are a key component in the delivery process.  Again TRUST and VERIFY are key components to this approach.

What do you think? 

Please comment and share your opinion – are TRUST and VERIFY the IT elephants in the rooms at your company?

P.s., Don’t forget to sign up for the SPICE Users Group 2012 conference in 2 weeks in Palma de Mallorca, Spain. See www.spiceconference.com for details!  I’m doing a 1/2 day SCOPE MANAGEMENT tutorial on Tuesday May 29, 2012.

Whose job is IT anyways?


The title was a purposeful play on the acronym “IT” (information technology) because there is often no one person who takes responsibility for failed IT projects. In addition, it is not as if there are not project failures everywhere.

Notwithstanding one of my least favorite (but often quoted) research studies, the Chaos Report cites that about one-third of projects are successful when it comes to IT.  What gets in the way of project success?  Lots of circumstances and lots of people!

When a software intensive project fails, there is no lack of finger-pointing and blame sharing – yet seldom do teams stand up and confess that the failure (over budget and behind schedule and failing to meet user needs) was due to a combination of over and under factors, along with fears:

  • overzealous and premature announcements (giving a date and budget before the project is defined);
  • over optimistic estimates of how quickly the software could be built;
  • under estimation of the subject complexity;
  • assumptions that the requirements were as solid as the customer professed;
  • under estimation of the overall scope;
  • under estimation of how much testing will be needed;
  • under estimation of how much time it takes to do a good job;
  • under estimation of the learning curve;
  • under estimation of the complexity of the solution;
  • under estimation of the impact of interruptions and delays;
  • over anticipation of user participation;
  • over optimism about the availability of needed resources;
  • over optimism about hardware and software working together;
  • over optimism about how many things one can do at once;
  • risk ignorance (“let’s not talk about risk on this project, it could kill it”);
  • over optimism of teamwork (double the team size doesn’t half the duration);
  • fear of speaking up;
  • fear of canceling a project (even if it is the right thing to do);
  • fear of pointing out errors;
  • fear of being seen as making mistakes;
  • fear of not being a “team player”;
  • fear of not knowing (what you think you should);
  • fear of not delivering fast enough;
  • fear of being labeled unproductive;
  • fear of being caught for being over or under optimistic.

Therefore, I ask you, on a software intensive IT project, whose job is it to point out when there are requirements errors, or something is taking longer than it should, or it is costing more than anticipated. In traditional waterfall development because there’s so much work put into the planning and documenting of requirements, pointing out errors are  either no one’s job or the team’s (collective) job which really relates to no one’s job.

Often it is easier (and results in less conflict) to not say anything when the scope or schedule or budge go awry on a software project. Yet it is this very behavior that results in so much rework and so many failed projects.

Agile and Kanban projects are different

Several of the advantages to using Kanban and Lean and Agile approaches to software and systems development is that the methods address the very items outlined above.  Building better software iteratively becomes every developer’s job rather than no one’s:

  • Fear of pointing out errors is removed because the time that goes into a scrum is days and weeks not months (so participants don’t get defensive about change);
  • Over and under optimism remains but is concentrated on smaller and less costly components of work (i.e. days instead of months or years);
  • Risk is not avoided or ignored because we are no longer dealing with elongated and protracted development cycles (spanning seasons);
  • Assumptions come out with better and more frequent discussions;
  • Over optimism about how many things one can do at once is removed because Kanban limits the amount of work-in-progress;
  • Under estimation of the impact of interruptions and delays is minimized because such factors are addressed in Kanban;
  • Over anticipation of user participation is managed through direct user involvement.

What do you think?  Join us at the Lean Software and Systems Consortium conference LSSC11 from May 3-6, 2011 as participants and speakers address the best ways of advancing software and systems methods including Lean, Kanban, Agile and other exciting new ways to deliver high quality software more efficiently and effectively.

These newer approaches make it easier for everyone in IT to make it their job to build better software.

Wishing you a productive week!

Carol
@caroldekkers (twitter)

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