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Questions tagged [estimating]

Questions on estimating schedule, costs, etc. go here.

2
votes
4answers
158 views

How to avoid the planning fallacy?

The planning fallacy appears especially frequently when estimating tasks in software development. However agile estimation methods like planning poker etc. don't seem to be designed to avoid this ...
2
votes
2answers
52 views

How to handle large R&D projects using Scrum (or any other agile framework)

In addition to our regular software development tasks we have some large R&D tasks which we find difficult to fit into our scrum framework. The main issue is that there is absolutely no user ...
3
votes
2answers
132 views

How to schedule back and front-end developers based on story points?

We are used to create multiple sub-tasks for each user story and provide each sub-task with an estimate in hours and assignee (back or front-end). With the following outcome: Total estimated time ...
3
votes
4answers
292 views

How to break down an 8 point story into smaller stories in Scrum?

My team and I are struggling with breaking down a user story that we have estimated to be 8 points. The user story is : "A user can sign up to the app using a registration form so that he is ...
2
votes
3answers
64 views

How much time should be given for investigating bugs/user stories for a sizing session

How much time should a developer spend on investigating bugs/user stories for sizing in a sprint? Currently we have 2 sizing sessions and a developer has time (time-boxed at 5min) to investigate and ...
2
votes
3answers
84 views

Is the product owner responsible to make long-term estimations about PBI in Scrum?

We know in Scrum, the responsible for make estimations is solely responsibility of the development team, but in long term planning, for example a release planning, we'd to have some kind of estimation ...
3
votes
3answers
62 views

What is the term for actual delivery time will be varied by 4 times from estimation?

I remember I once read in Wikipedia about a law stating that the actual delivering time will always be 4 times less to 4 times more from the estimated time, even when you aware that law and know every ...
3
votes
4answers
61 views

how to estimate multiple stories with less complexity?

We want to track user activity on this screen (attached image) i.e. close button click (top-right) User's tap on textbox (Type your city) User's click on Detect my location If we follow INVEST ...
3
votes
2answers
72 views

What techniques do you use to establish scope in agile

More than communications skills, lean techniques to discard useless features with no value, more than ask "what do you want?" or "is there anything else?" to the customer. Reading the book Agile ...
2
votes
4answers
74 views

Under what circumstances should a software vendor be allowed to increase charges due to unforeseen complexity?

Something that occurs quite often in outsourced software projects is the vendor underestimates the complexity or learning curve associated with an agreed-upon statement of work, and wants to increase ...
3
votes
4answers
121 views

Handle stories which can not be estimated

Do scrum have a method for handling tasks which can not be estimated in any meaningful way? I'm going to give an example we faced recently. We sell some hardware devices and recently found out that ...
2
votes
2answers
53 views

Product backlog items must be estimated in story points?

I have read some common "good practices" out there. Does scrum specify the metrics or the team must determine what and how to use metrics, processes, etc. to the benefit of the product?
5
votes
1answer
110 views

Using the Stacey matrix to capture agile metrics

I recently encountered the Stacey matrix in an answer by Stephan Weinhold. After looking at the linked image provided & doing a bit more reading that describes it as a way to characterize ...
1
vote
4answers
93 views

Is it possible to control a project without start date and durations?

In a discussion about the project plan with my team we collected activities, brought them into order and defined end dates. When we came to defining start dates and durations one of the elder team ...
1
vote
1answer
60 views

Any suitable cost estimation approaches for ETL projects?

I would like to know if there are any suitable estimation approaches for ETL (Extract, Transform, Load) projects. In my case I will be using Logstash for an elastic stack. Since the amount of work (...
0
votes
0answers
48 views

Is it possible to display Estimation Points for lanes in Active Sprint in JIRA?

in the attachment you can see JIRA, an active Scrum Board. I've a very simple question, is it possible to have on top of the lane a number representing the Estimated Points that are the sum of that ...
1
vote
1answer
110 views

If SAFe must be continuously calibrated and measured in ideal days, why does the framework say recalibration is unnecessary?

TL;DR SAFe says you don't need to recalibrate estimation, but requires estimates and other metrics to be normalized across one or more Agile Release Trains. Context, question rationale, and the ...
0
votes
2answers
222 views

A simple estimation accuracy formula that yield always 0-100?

I'm just beginning and despite my search I cannot find any simple formula that would return a number between 0 and 100%, i.e. I do not care whether there was over or underestimation. The simplest ...
3
votes
6answers
849 views

Alternatives to estimating in hours/story points

We are looking to change our approach on estimates. Now we estimate in hours/days, but we would like to change this and make our process more flexible. We are working based on Scrum, where stories are ...
0
votes
4answers
89 views

How to estimate time for a project needing skills only a new hire has?

I have a little new company that works with robotics, machine vision and natural language processing. But for some projects, we need to write some Android/iOS applications. In our company we don't ...
-1
votes
2answers
46 views

Should we create multiple stories for same thing to be replicated at code level?

We have a page with the same content at 2 places. Since we are running with legacy code and due to some previously made bad decisions, we have duplicated the logic twice for the same thing. Both the ...
0
votes
3answers
76 views

What could be potential harm of giving points to chores or technical debts?

Recently our team has decided to give points to the chores. They had an argument that: Velocity defines team's capacity to deliver the work and if chores are not counted in velocity it won't reflect ...
3
votes
2answers
715 views

How to estimate when knowledge varies between team members?

My team estimates task which is easier for someone who already knows Swagger but harder for someone who doesn't. The person who knows Swagger will likely have other tasks to do so this one may fall to ...
2
votes
1answer
59 views

Advanced estimation accuracy techniques

What techniques are available to calculate the accuracy of ranged estimates, on units of work that may be irregularly re-estimated? The evaluation should account for estimates made on behalf of ...
3
votes
3answers
203 views

Are there alternatives to estimation? (Software development)

I am taking control of a small project for the first time, and want to tell if we can deliver our scope on schedule. Most teams I have worked in have used story-based estimations. My experience of ...
1
vote
3answers
64 views

Stakeholder view of projects without time?

I'm a PM for a small development team. We have a mix of large transformation projects and small improvement projects. We're not good at estimating in man hours (and in fact I'm yet to meet a team of ...
2
votes
1answer
60 views

How to estimate the value of software for a control system?

Control systems are like computers, but sometimes less so. For the current discussion, it can be assumed that some custom effort maybe needed to make the same code work on different platforms. With ...
1
vote
2answers
98 views

Estimating and Project budgets

I'd be interested to hear how you manage dealing with project budgets when having to provide a fixed cost up front for the customer ahead of starting the work? For context, and without giving too ...
1
vote
2answers
146 views

How many developers do we need? How much time?

We are currently using Scrum and we are evolving into Kanban. At the same time, we are starting a migration from version 1 of our underlying framework to version 2. There is a target date of January 1 ...
0
votes
1answer
58 views

How to create a schedule for a UX process?

I started to work on a new project ( software development) an my boss asked me: "what are the next steps? I need a schedule!" We're at the beginning, doing some user tests and researches about the ux ...
3
votes
2answers
750 views

How to allocate story points on extremely complex user stories?

We currently allocated story points the following way: 0.5 very simple (approx 0-30 mins) 1 simple (approx half a day) 2 Medium difficulty (couple of days) 3 Hard (3 days) This works well for us, ...
1
vote
1answer
133 views

How to determine hours spent on a project if didn't record them at the time?

How can I produce an accurate determination of hours spent on projects in the past when I didn't record the time spent at the time? I used to own my own business putting on concerts in the Seattle ...
2
votes
4answers
739 views

Should I estimate repeating tasks (besides Stories and Bugs)?

Besides User Stories and Bugs (no estimation) we have some repeating Tasks in our sprint, which have not much insecurity and a clear scope. For example such a task is "releasing our plugin" (building, ...
4
votes
1answer
90 views

Deal with unestimated Defect-Tasks in Sprint for Veloctity calculation

As said many times before (1, 2, 3): "Do not estimate bugs / defects". I know in Scrum we try to minimize the defect rate, but it happens now and then. Fixing such unestimated tasks might have ...
2
votes
2answers
298 views

Why in PERT the activities duration follows a Beta distribution

studying the details of PERT/CPM, I'm perplexed when I read the formula of duration of an activity is expected time = (opt. time + 4medium + pess. time) ÷ 6 because it's following a Beta ...
1
vote
1answer
99 views

Is COCOMO 2 Estimation Sound, or is there Something Better?

I am reading about COMOMO estimation and what I see is margin of error is almost always too high. Also I didn't like the idea to use lines of code to measure progress. So I wonder is COMOMO really a ...
6
votes
2answers
657 views

T-Shirt Size and total estimation, how to manage them?

I'm working on a project and the Product Owner has to decide if and how many new game-features implement in a SmartPhone app. Those game-features have the goal of keep the user more active inside the ...
0
votes
1answer
61 views

Scheduling hours over a fixed duration in MS-Project 2013

I am new to Project and, rather than spending anymore time reading the web, I thought I'd appeal to some experts. In our company we often schedule tasks similar to the made-up one just below. We are ...
6
votes
2answers
174 views

Estimate Item Delivery from Throughput plus blockers

We are combining all of our projects into one Kanban board. Since we are only ever one team, it seems to make the most sense to combine everything to one board and prioritize as we can all only work ...
3
votes
3answers
246 views

How (and in what units) to measure the product scope?

Short version: How and in which units is it better to measure the product scope (volume of incoming requirements / amount of business functionality) if different parts of product (different ...
3
votes
2answers
194 views

How can I produce more reliable estimates for technology refresh projects?

After running a few projects that refresh technology rather than add functionality, I've noticed a few recurring themes: Technology refresh projects are more likely to go over budget/schedule; ...
4
votes
1answer
120 views

Pragmatic method to check/improve effort calculations

Somebody asked me to look over their cost calculation for an internal IT project in the 1.5 mio € range. They did some eyeballing, and are now asking me to cross-check it for them with a few hours of ...
4
votes
2answers
340 views

How can I stop my remaining estimate to be adjusted?

In JIRA, we have a task for standups and meetings, obviously this task does not need an estimate, but it is useful to have time tracking on it. However, when I log time on this issue, the remaining ...
2
votes
2answers
439 views

Calculating project forecasts in Jira

As a Scrum Master, I want to help my Product Owner to make an educated guess of when features in a project will be implemented, in order to communicate with stakeholders so that they can manage Scope. ...
0
votes
1answer
68 views

My Project Milestones Do not Represent My Current Tasks. What should I do to track my project?

I am involved in a project for my summer internship. Prior to the start of the internship, I have set several milestones to help me track the progress made toward reaching the goals of the project. ...
0
votes
3answers
2k views

How to estimate times during Sprint Planning?

I have 6 user stories for a sprint of 14 days. I have the detailed description in the stories for what the team needs to develop, and the team is new to scrum. (this would be their 2nd sprint). The ...
2
votes
3answers
198 views

How to shift to the semi-automatic estimation of the projects?

I am working at a custom software development company. The number of incoming custom projects has increased over the last few years. The first problem is that not all customers are willing to pay us ...
1
vote
3answers
98 views

Estimate depending work items in Scrum

Scenario: Let's say there are two items A and B in the product backlog of a Scrum team. From a PO point of view B has more customer value than A and is therefore ranked higher. When asking a developer ...
6
votes
5answers
5k views

Jira story points versus sub task estimation

We are using Jira for agile PM, but are having problems working with both story points and sub task hours estimation. Articles like this and this just don't seem to help. The second article has a ...
12
votes
4answers
2k views

Should velocity increase with time?

Some scrum masters are concerned with "bumping up" a team's velocity during a sprint, as if a higher velocity is better. But points are a relative measure of the work that a team needs to do for ...