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does phase delay increase bug costs?
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any information on project size? #16

Closed timm closed 9 years ago

timm commented 9 years ago

The characteristics of the projects are given in duration and number of people: no indication of size.

llayman commented 9 years ago

None of the data I have shows anything about project size. It's possible it is in the SEMPR_fact_sheets_2014-10-14, but I need the password to unlock the sheet.

It is also possible that Bill knows the answer to this already.

llayman commented 9 years ago

@WilliamNichols Do you know if there is project information hidden in the SEMPR fact sheets? If so, can you share either the password for the sheet or the data? Thanks!

WilliamNichols commented 9 years ago

We can get project size in several ways 1) duration 2) number of people 3) task hours logged 4) product size (usually in LOC)

The size reporting is inconsistent, 1,2, and 3 are very reliable. I think I gave you a Project_facts along with the logs. THis summarizes the number of people, duration and task hours. Similar information can be extracted from the Time Log or Task log using the Person_Key, effort_in_mintues, and time_stamps. I have older distributions, but I am not sure I ever compiled for this particular dataset.

I am in the process of updating the project fact sheet (to be used to evaluate some Mexican projects), once complete producing ranges is a small matter of processing in R, Minitab, or an excel worksheet. Proceed if you like, or wait a few days and I will give you an updated project_fact_sheet with the summaries

WilliamNichols commented 9 years ago

I’m not yet used to Githum, what do I need to do to push this

From: Lucas Layman [mailto:notifications@github.com] Sent: Friday, July 31, 2015 8:24 AM To: ai-se/phaseDelay Cc: William Nichols Subject: Re: [phaseDelay] any information on project size? (#16)

@WilliamNicholshttps://github.com/WilliamNichols Do you know if there is project information hidden in the SEMPR fact sheets? If so, can you share either the password for the sheet or the data? Thanks!

— Reply to this email directly or view it on GitHubhttps://github.com/ai-se/phaseDelay/issues/16#issuecomment-126674395.

timm commented 9 years ago

dont need to push... just dump text into the comments. note that these comments support markdown (so you can do some styling as you go, if your want(

timm commented 9 years ago

@WilliamNichols Bill! need your input on this point please. -- @timm

WilliamNichols commented 9 years ago

I thought I sent that information already. I tried to post a current version of the Project Fact sheet which has a project number along with some demographic data such as numbers of developers, product size, duration, and so forth. This is in the Project_Fact_sheet. but I have a newer version. This includes more projects, but the project ID for the ones in the current study have not changed.

WilliamNichols commented 9 years ago

OK, since my prior attempt clearly did not work, I decided to clone the repository and push a csv file project_process_fidelity_sheet_2015-08-01.csv

This has 394 projects or project cycles, but the project IDs are identical to the earlier version .

the first 15 columns of the header row are project_key process_name start_date_char end_date_char team_size planAM actualAM plan_duration_weeks actual_duration_weeks plan_duration_days actual_duration_days duration_variance_schedule_days duration_variance_schedule_percent plan_task_hours actual_task_hours

This provides all the necessary information about project size measured in several different ways. I also have some partially completed work on joining related projects, but that is beyond the scope of what we can address in a paper this short.

Is there anything else you need.

Plan/Actual AM are added and modified LOC

WilliamNichols commented 9 years ago

I don't think I hit the right button, there, reopened.

timm commented 9 years ago

cant see it. email to me?

but before that: the real issue here, i think, is not "how big are the TSP projects" but "how big are the TSP projects relative to all projects". more generally , the issue we have to resolve is this:

@llayman : how big were the prior projects were phase delay was reported? @fshull : what can we say about the usual size of software projects?

WilliamNichols commented 9 years ago

OK, it is in my local, but must not have synced.

From: Tim Menzies [mailto:notifications@github.com] Sent: Friday, August 14, 2015 2:12 PM To: ai-se/phaseDelay Cc: William Nichols Subject: Re: [phaseDelay] any information on project size? (#16)

cant see it. email to me?

but before that: the real issue here, i think, is not "how big are the TSP projects" but "how big are the TSP projects relative to all projects". more generally , the issue we have to resolve is this:

@llaymanhttps://github.com/llayman : how big were the prior projects were phase delay was reported? @fshullhttps://github.com/fshull : what can we say about the usual size of software projects?

— Reply to this email directly or view it on GitHubhttps://github.com/ai-se/phaseDelay/issues/16#issuecomment-131197778.

WilliamNichols commented 9 years ago

I think I pushed it this time. I should stick to the command line, I find the affordances of the GUI to be unintuitive. And Git seems designed to confuse someone coming from CVS or SVN

From: Tim Menzies [mailto:notifications@github.com] Sent: Friday, August 14, 2015 2:12 PM To: ai-se/phaseDelay Cc: William Nichols Subject: Re: [phaseDelay] any information on project size? (#16)

cant see it. email to me?

but before that: the real issue here, i think, is not "how big are the TSP projects" but "how big are the TSP projects relative to all projects". more generally , the issue we have to resolve is this:

@llaymanhttps://github.com/llayman : how big were the prior projects were phase delay was reported? @fshullhttps://github.com/fshull : what can we say about the usual size of software projects?

— Reply to this email directly or view it on GitHubhttps://github.com/ai-se/phaseDelay/issues/16#issuecomment-131197778.

timm commented 9 years ago

@WilliamNichols

so i multiplied

team_size * actual_duration_days

and got

image

does that look right to you? median effort in your projects is about 300 stafff days?

WilliamNichols commented 9 years ago

Looks about right. A typical small project is 3-5 people for 2 or 3 months. If it matters, calendar days were not discounted for weekends. I have that calculation but didn't put on that table.

A reality check ( and demonstration of noise) would compare total task hours.

Size is not terribly reliable, it is measured very differently by different projects. Effort in hours is very reliable. 2.5 to 3 effort hours is a typical man day equivalent

Sent from my iPhone

On Aug 14, 2015, at 4:16 PM, Tim Menzies notifications@github.com<mailto:notifications@github.com> wrote:

@WilliamNicholshttps://github.com/WilliamNichols

so i multiplied

team_size * actual_duration_days

and got

[image]https://cloud.githubusercontent.com/assets/29195/9283189/c415a33c-429f-11e5-9aad-0a25feb4455f.png

does that look right to you? median effort in your projects is about 300 stafff days?

[image]https://cloud.githubusercontent.com/assets/29195/9283155/84d2b688-429f-11e5-991a-e0e1b663926f.png

— Reply to this email directly or view it on GitHubhttps://github.com/ai-se/phaseDelay/issues/16#issuecomment-131228630.

timm commented 9 years ago

ok. added to file. we're done

image