Cost estimate
The calculation of the cost estimate considers three factors acquisition, personal and tool.
1.1 Acquisition cost
| Equipment | Amount | Goal | Unit value | Price |
|---|---|---|---|---|
| Notebooks | 5 unit | Development and planning | R$ 4.000 | R$ 20.000,00 |
| Broadband internet | 4 months | Development and planning | R$100/month | R$ 2000,00 |
1.2 Personal cost
| Role | Amount | Salary/month (160h total) | Salary/hour | Total |
|---|---|---|---|---|
| Middle developer | 5 | R$ 4.000 | R$25,00 | R$ 22.500¹ |
| Software architect, DevOps, Scrum Master e PO | 5 | R$ 6.500 | R$40,63 | R$ 36.567¹ |
¹ price for 5 members working 12h/week for 15 sprints week-long.
1.3 Tool cost
| Tool name | Goal | Total price |
|---|---|---|
| Google Drive | File share | R$ 0 |
| Text editor | Creating documents and code | R$ 0 |
| GitHub | Source code management and repository | R$ 0 |
| GitHub Actions | Pipeline CI/CD | R$ 0¹ |
| Google domains | Domain name registration service | R$ 50,00 |
| Docker | Container apps | R$ 0 |
| Amazon EC2 | Host cloud service | R$ 0² |
| Amazon RDS | Database cloud service | R$ 0³ |
| Amazon SES | Email cloud service | R$ 0⁴ |
| Amazon Lambda | Lambda function cloud service | R$ 0⁵ |
| RabbitMq | Message broker | R$ 0 |
| Telegram | Members comunication | R$ 0 |
¹ price valid for 2000 minutes/month, after that will cost US$ 0.008 per minute.
² price valid for 750 hours/year, after that will cost US$ 0,0116 per hour on demand.
³ price valid for 750 hours/year, after that will cost US$ 0,017 per hour on demand.
⁴ price valid for 62000 emails sents, after that will cost US$ 0,10 for every 1000 emails sents.
⁵ price valid if have applications in ec2 and the limit is 1 million request or 400.000 gb/s in compution time, after that will cost US$0,20 at every 1 million request and US$ 0,0000166667 for every gb/s
1.4 Total cost
| Cost | Total value |
|---|---|
| Acquisition | R$ 22.000 |
| Personal | R$ 59.067 |
| Tools | R$ 50 |
The total value for estimated cost is R$ 81.117,00 Considering the risks, will increase 10% of total project value, the final value for estimated cost is R$89.228,7.
References
Meller, Maristela Corrêa. Modelos Para Estimar Custos De Software: Estudo Comparativo Com Softwares De Pequeno Porte. 2002. Disponível em: https://repositorio.ufsc.br/xmlui/handle/123456789/82351
Document Versioning
| Date | Author(s) | Description | Version |
|---|---|---|---|
| 09/05/2020 | Ygor Galeno | Document creation | 0.1 |
| 09/06/2020 | Ygor Galeno | Finish document | 0.2 |