This twitter account is dedicated to everyone interested in the world of Quality Assurance and Quality Control, we hope you enjoy the comments.

Joined August 2012
5 Photos and videos
3 incidencias en una sola calle. 2 autos bloqueando la banqueta y 1 cubeta que aparta lugar. Todo en Matías Romero 82, entre @AdolfoPrietoVec y Providencia. En @ColDelValleBJ Centro @BJAlcaldia. @UCS_GCDMX
1
1
1
159
25 Jan 2024
Providencia 1142, entre a Porfirio Díaz y Eje 6 en @BJAlcaldia . Vehículo escolta estorbando el paso peatonal. @UCS_GCDMX @AdolfoPrietoVec
2
1
1
133
30 Mar 2023
Matías Romero #102 entre Adolfo Prieto y Roberto Gayol en @BJAlcaldia Motocicletas invadiendo las banquetas. @AdolfoPrietoVec @UCS_GCDMX
1
1
3
259
29 Mar 2023
No hay paso. Camión descargando vigas y automóviles bloqueando la banqueta en Matías Romero 82, entre Adolfo Prieto y Providencia. Se requiere apoyo de @UCS_GCDMX en @BJAlcaldia @AdolfoPrietoVec
1
123
15 Mar 2023
“Testing is a process of verifying and validating that a software application or system meets its requirements and specifications.” #softwaretesting #verification #validation
26
27 Sep 2022
Soy vecino de @AdolfoPrietoVec tristemente reporto que todos los días en nuestro parque Tlacoquemecatl @tlacodelvalle entre la 18 y 20 hrs hay personas fumando marihuana, a pesar de haber niños, mujeres embarazadas y paseando a sus bebés. Ayuda @UCS_GCDMX no hay oficiales a pie.
1
2
1
Finding and fixing defects does not help if the system built is unusable and does not fulfill the users’ needs and expectations. #ISTQB
1
1
2
Testing is done differently in different contexts. For example, safety-critical software is tested differently from an e-commerce site.
1
If the same tests are repeated over and over again, eventually the same set of test cases will no longer find any new defects. #ISTQB
Defect Clustering. A small number of modules usually contains most of the defects discovered during pre- release testing. #ISTQB
Testing effort shall be focused proportionally to the expected and later observed defect density of modules. #ISTQB
To find defects early, testing activities shall be started as early as possible in the software or system development life cycle. #ISTQB
1
Exhaustive testing is impossible. Instead, risk analysis and priorities should be used to focus testing efforts. #ISTQB
Testing everything (all combinations of inputs and preconditions) is not feasible except for trivial cases. #ISTQB
Testing can show that defects are present, but cannot prove that there are no defects. #ISTQB
Testing should provide sufficient information to stakeholders to make informed decisions about the release of the software. #ISTQB
A human being can make an error (mistake), which produces a defect (fault, bug) in the program code, or in a document. #ISTQB
1
SW that doesn't work correctly can lead to many problems, including loss of money, time or business reputation, and could even cause injury.
A tester must have a critical mindset. Don't assume! Ask! #TestingExperience
Make it possible to rerun your tests, with more logging and analysis tools switched on. You may be wrong, take notes of what you do.