Developers Club geek daily blog

Tekhnokniga, part 4: literature on management of product, development of web services, management of web projects, business and systems analysis of architects

1 year, 11 months ago

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We separate interfaces for unit testing

1 year, 11 months ago
According to the blog of our company the impression can be made that we are engaged only in data mining'om and networks. Therefore I as the representative of developer workshop, could not refuse in pleasure to write himself article how unit-testing and division of code into modules at us in frontend is abruptly organized.


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Development of visual modeling language by means of Sirius

1 year, 11 months ago

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Conversion of approach of Zakhman

1 year, 11 months ago
Kind read time, dear participants of habrahabr.ru

In article of 2001 Leonid Chernyak — Architecture of systems across Zakhman
http://www .osp.ru/os/2001/12/180711/
it is cited:
here more than forty years application of technologies to solution of corporate problems became something like search of the Sacred bowl of Graal
and Zakhman's architecture and now is considered the interesting direction of search of https://msdn .microsoft.com/ru-ru/library/ee914379.aspx

The analysis of model of Zakhman for 2013 can be read according to the link http://ailev .livejournal.com/951732.html

other approaches are published in http://www.intuit.ru/studies/courses/995/152/lecture/4236?page=2

I tried to execute the first attempt of the analysis in the article http://habrahabr .ru/post/176935/on the basis of book terminology Danilin A., Slyusarenko A. Arkhitektura and strategy. "Yin" and "Yan" of information technologies of the enterprise: Internet-Un-t Inform. Technologies, 2005

Zakhman's scheme 6 on 6 is held in the deserved respect, however from the point of view of tunnel modeling its conversion to the expanded system is reasonable.

In this subject the coordinate system for enterprise modeling is offered.

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As we developed 3D system of scanning of people with use of the 3D cameras Intel RealSense and the Intel Edison technologies

1 year, 12 months ago
Cappasity is engaged two years in development of technologies on 3D scanning. This year we release the software product on scanning for ultrabooks and tablets with the camera Intel RealSense – Cappasity Easy 3D Scan, and next year - hardware and software solutions for scanning of people and objects.

Thanks to that I am Intel Software Innovator and thanks to the Intel team which keeps this program, we have received the invitation to show our prototype on scanning of people much earlier the planned term. In spite of the fact that time for preparation was very little, all of us have decided to risk. And in this material I will tell how our demonstration for Intel Developer Forum 2015 which has passed in San Francisco in August 18-20 was created.


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Recipes of Docker: Monkey patch, part third

1 year, 12 months ago
Please, begin to read a series of notes since the beginning, here: habrahabr.ru/post/267441

Setup locally



In this article I assume that the service docker is started by the same machine on which commands are executed, and process has an access to reading to the current folder. Still I mean that you are able to configure a linking of PHP-FPM and Nginx.

To Bør images of Nginx and PHP 7.

~$ docker pull nginx
...
~$ docker pull php:7-fpm
Status: Downloaded newer image for php:7-fpm

Now I have two others classes which should be connected together through implementation of dependences. The easiest way to add dependence to others code, of course, of monkeypatching! At first I create containers. I remember the second complexity of programming — I give to containers intelligible names, they will be necessary that containers could interact among themselves.

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Docker, part second. Semi-automatic rifle with homing on foot

1 year, 12 months ago
Please, start reading with the beginning of series: habrahabr.ru/post/267441

As Docker should not use.



To understand this article it is necessary to know the basic Dockerfile teams for creation of images and the principles of object-oriented design.

I open documentation of any official image of service software — for example, and I find Nginx the section "How to use this image". To us suggest to create the image on the basis of official, having copied in it our files, to configure maping of port to the world, and to podmontirovat the folder with configs.

FROM ...
COPY  . /usr/src/myapp
WORKDIR /usr/src/myapp

Yes, to us suggest to inherit Model from View in one star class and to pay for storage on Docker Hub of images of our proprietary applications.

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Consul: It is simple Service Discovery, or we say goodbye about config files

1 year, 12 months ago
That here the interesting:

image

Review about Consul (http://consul.io) — system for maintenance of detection of services and the distributed storage key value. Except Consul, we will consider Consul-Template — means for management of configurations of services automatically reflecting changes in topology. Article will be interesting to DevOps to engineers, system architects, tim-leads of projects and we designate to the interested microservice architecture.

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High-frequency trading: The manual from the hero of the book Flash Boys

1 year, 12 months ago


Note of the translator: Earlier in our blog on Habré we considered different development stages of trade systems (is also the bektest-module on Python. Today we present to yours the short guide to high-frequency trading from Brad Katsuyama (Brad Katsuyama) — the well-known quantum and the hero of the best-seller Michael Lyyus "Flash Boys: A Wall Street Revolt" (we published adaptation of this work in the blog).

In episode of the broadcast of Wall Street Week Brad Katsuyama has told about high-frequency trading (HFT) and structure of the market, and we have made the overview on HFT trading and financial regulation from the point of view of process of execution of orders at the exchange. Video is available according to the link.

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And again about 1C

1 year, 12 months ago
image
Lately on Habré articles devoted 1C as to application development environment began to appear even more often. Articles on sense more conceptual, than applied; authors do the overview of the 1C:Enterprise 8 platform in general, try to understand, the technology of creation of business applications offered 1C is good or bad.

I will not discuss, whether each of authors is right or not; at platform 1C as any technology, has advantages and shortcomings. And there are also interesting features, the practices and mechanisms. Here also there is a wish to talk about them. And still — there is a wish to write article about 1C for people, with 1C unfamiliar, 1C takes article which shows, what place among similar software products. Personally such fact-finding review very much was not enough for me when I was not sign with 1C yet, but it was familiar with some other ERP of products.

So, we will begin!

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