estimating workload for ennumerators - ODK Community

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Message from discussion estimating workload for ennumerators
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Date: Tue, 15 May 2012 23:18:33 -0700
Message-ID: <CANMpf84=_hJ8n72QfKF7OwGhxgjGihjbkK+FDsMWYu=BK_M...@mail.gmail.com>
Subject: Re: [ODK Community] estimating workload for ennumerators
From: James Dailey <jamespdai...@gmail.com>
To: opendatakit@googlegroups.com
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Christian,

I'm sure this much is clear:  Manpower estimation is a function of (number
of days available) o (time for one survey) o (transaction cost in terms of
time between surveys) o (number of surveys needed to be done).

In our surveys in an urban and peri-urban area in Asia, the time for one
survey is less than one minute, but we have a very simple ODK form.   The
time between surveys for moving from one household to the next is 10-20
minutes (i.e. much more than the form survey time), but this is optimized
by organizing by sub-districts within the municipality and environs.
Network analysis at its simplest.

A somewhat random guesstimate: having never been to Kuala Lampur, but
understanding that the frequency of "trade stores" (assuming I know what
you mean) is going to similar to other asian cities, and probably at a rate
of one per ~500 people, in the metro area with a population of 1.9 M
people, then the number of stores you need to cover is ~3800.  I'd
therefore guess 4-5 surveyors working 5 hr shifts with 20 minute
turnarounds (3 surveys per hr) X 5 hrs X 5 is 75 per day, or about two
months of work for that sized team, which seems about right to me.

James


On Tue, May 15, 2012 at 9:02 PM, Christian Mondorf <christ...@mondorf.dk>wrote:

> Hi Roxroy,
>
> Ultimately, all of Malaysia, but for the moment the valley around Kuala
> Lumpur.
>
> This covers rural and urban areas.
>
> On Tuesday, 15 May 2012 17:13:43 UTC+8, OutSourceRox wrote:
>>
>> Hey Christian,
>> What is the estimated size of your proposed project area?
>>
>> R.
>>
>> On Tue, May 15, 2012 at 1:37 AM, Christian wrote:
>>
>>> Hello,
>>>
>>> I've been asking this in several places but without too much luck so
>>> far. I'm setting up a project to map out traditional trade shops in
>>> Malaysia (as opposed to big chain stores) using ODK, but am having trouble
>>> coming up with a good estimate of how much manpower is needed for how long
>>> to cover a given surface.
>>>
>>> So far I've been working on the assumption that we'll do pilots and
>>> extrapolate from there, but I was wondering if there is a more accurate or
>>> established method of guesstimating the resource requirement early on. How
>>> have you guys planned this aspect of your projects?
>>>
>>> Any help is greatly appreciated!
>>>
>>> Christian
>>>
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>>
>>
>>
>> --
>> *Play it forward and Have a good one!*
>> ---
>> "Like a camera I use the negative to develop..uDig"
>> "Success is the ability to go from one failure to another with no loss of
>> enthusiasm"
>> ------------------------------**------------------------------**
>> ------------------------------**---------------->
>> *OutSourceRox**
>> *
>> *Roxroy K. Bollers*
>> GIS and IT Consultant
>> tel. 592.685.2737
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-- 
James Dailey
skype: jdailey

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Christian, <br><br>I&#39;m sure this much is clear:=A0 Manpower estimation =
is a function of (number of days available) o (time for one survey) o (tran=
saction cost in terms of time between surveys) o (number of surveys needed =
to be done).=A0 <br>
<br>In our surveys in an urban and peri-urban area in Asia, the time for on=
e survey is less than one minute, but we have a very simple ODK form.=A0=A0=
 The time between surveys for moving from one household to the next is 10-2=
0 minutes (i.e. much more than the form survey time), but this is optimized=
 by organizing by sub-districts within the municipality and environs.=A0=A0=
 Network analysis at its simplest.=A0 <br>
<br>A somewhat random guesstimate: having never been to Kuala Lampur, but u=
nderstanding that the frequency of &quot;trade stores&quot; (assuming I kno=
w what you mean) is going to similar to other asian cities, and probably at=
 a rate of one per ~500 people, in the metro area with a population of 1.9 =
M people, then the number of stores you need to cover is ~3800.=A0 I&#39;d =
therefore guess 4-5 surveyors working 5 hr shifts with 20 minute turnaround=
s (3 surveys per hr) X 5 hrs X 5 is 75 per day, or about two months of work=
 for that sized team, which seems about right to me. <br>
<br>James <br><br><br><div class=3D"gmail_quote">On Tue, May 15, 2012 at 9:=
02 PM, Christian Mondorf <span dir=3D"ltr">&lt;<a href=3D"mailto:christian@=
mondorf.dk" target=3D"_blank">christ...@mondorf.dk</a>&gt;</span> wrote:<br=
><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1=
px #ccc solid;padding-left:1ex">
Hi Roxroy,<div><br></div><div>Ultimately, all of Malaysia, but for the mome=
nt the valley around Kuala Lumpur.=A0</div><div><br></div><div>This covers =
rural and urban areas.<br><br>On Tuesday, 15 May 2012 17:13:43 UTC+8, OutSo=
urceRox  wrote:<blockquote class=3D"gmail_quote" style=3D"margin:0;margin-l=
eft:0.8ex;border-left:1px #ccc solid;padding-left:1ex">
Hey Christian,<div>What is the estimated size of your proposed project area=
?</div><div><br></div><div>R.<br><br><div class=3D"gmail_quote">On Tue, May=
 15, 2012 at 1:37 AM, Christian wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">Hello,=A0<div><br></div><div>I&#39;ve been a=
sking this in several places but without too much luck so far. I&#39;m sett=
ing up a project to map out traditional trade shops in Malaysia (as opposed=
 to big chain stores) using ODK, but am having trouble coming up with a goo=
d estimate of how much manpower is needed for how long to cover a given sur=
face.</div>

<div><br></div><div>So far I&#39;ve been working on the assumption that we&=
#39;ll do pilots and extrapolate from there, but I was wondering if there i=
s a more accurate or established method of guesstimating the resource requi=
rement early on. How have you guys planned this aspect of your projects?</d=
iv>

<div><br></div><div>Any help is greatly appreciated!</div><span><font color=
=3D"#888888"><div><br></div><div>Christian</div>

<p></p>

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</font></span></blockquote></div><br><br clear=3D"all"><div><br></div>-- <b=
r><span style=3D"font-size:x-small"><b><font color=3D"#FF0000">Play it forw=
ard and Have a good one!</font></b></span><br>---<br><span style=3D"font-si=
ze:x-small"><font color=3D"#009900">&quot;Like a camera I use the negative =
to develop..uDig&quot;<br>

&quot;Success is the ability to go from one failure to another with no loss=
 of enthusiasm&quot;</font></span><br>------------------------------<u></u>=
------------------------------<u></u>------------------------------<u></u>-=
---------------&gt;<br>

<font face=3D"&#39;trebuchet ms&#39;, sans-serif"><b><font color=3D"#ff0000=
">OutSource</font><font color=3D"#c0c0c0">Rox</font></b><b style=3D"color:r=
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;trebuchet ms&#39;, sans-serif"><b>Roxroy K. Bollers</b></font></font><br>

<span style=3D"color:rgb(0,102,0);font-family:&#39;arial narrow&#39;,sans-s=
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<p></p>

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ley<br>skype: jdailey<br><br>

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