Why can not products on time and on line

Why do so many products can not on time on the line, why plan in January on the line always pushed to February, why so many bug and problems on the line, why the technical team always in the line of say good multi no good test is not transferred through ? Or is the problem can not be completed pile.
In fact, the system is relatively similar lines with decorating the house, decorating the house also found that when a 2-3 month period dragged on for months, in the middle of many reasons memorable. Products can not be on time and on line, in the end what is the reason?
First, we have analyzed a large number of user cases, we can not find a lot of products on the line time and a large part of the reason is that our needs change, the initial demand is given, changes occur constantly in the process of doing so on technology development You have to keep adjusting. Like decorating the house, and today would like to install lights in the living room, tomorrow and move to the bedroom, which involves the transformation of water and electricity, lines. Transformation like transformation of the technical architecture will rework all the things that may not seem so simple. But we are from a product point of view is very simple thing, this will cause a lot of problems, this is a very important reason. To ensure that our products on time and on line, the entrepreneur must know to do subtraction choice, some features are icing on the cake, some features are timely, that must be done must be functional, non-essential functions can be iterative late. When our product is not complete, incomplete, when, if solved the problem of a special just to be, the user will use our products, like the drops of a taxi, Moldova worship, OFO, these App there have been a lot of the time on the line problems are gradually solved. So the goal line to clear, must be clear, we can not do a particular step perfect product, but my first step on the line we can run up a flawed product.
Secondly, we manage the entire development process is really in place, whether out of control. We will encounter such a scenario, determine a good product development, technical team to do three months, then we managers how to monitor this process. You will find a progress report after 2 weeks became 20% finished, after some time to ask Having become 30%. I wonder what you see in the end did not see that 30% to the final on the line always find a lot of the problem is not resolved. So the process of project management in the state must follow closely, but also take the decoration, if we go once or twice a site one week you will find that progress can be controlled, and there are questions you can ask on-site. Our technology development process may be such a problem, as long as the start developed, we would not care, and so the results came out just fine. This belongs to the out of control, you may have problems in the development process and product development needs understanding, there is no timely communication, the results obviously want a table out of a chair. So we feel that the project monitoring and management should be timely, that how to solve it? The easiest way is to meet regularly, once a week review meeting, take a look at the progress of the project, the completion of the current show features the look, although the function is not perfect, but to see something substantive. Technical team might say the system development to this stage can not show, because the function does not take the whole, in fact, does not matter, you can always say that what has been done, to what extent, do not complete the degree, the various stages of development all can show, at least you can see the page, you can see the status of a functional part of the code and the team, but also knowledge of the group have in the development process no problem, avoid black-box development.
Third, there is the product line is a big problem, want to function like this, the last out is so, and the deviation imagined. Why is this UI design, UI made out of very different? How great function is poor, and the effect is not good? How is this going? In fact, technology development is a continuous process, UI design may not be considered when technology can not be achieved, made a particularly good effect, the development of technology, said the results do not result into another form. As well as product managers do function, they also make very clear, but the development did not fully understand, and to do the direction of the way. This is what causes it? The system developed by the demand to prototype to UI, UE, and then to develop the whole is a systematic project. So the product team and design team must do to communicate and determine when doing work with the development team of technical solutions, rather than do the design with little relationship between technology and no technical staff to get involved understand our business, we are familiar with business, we know which is our focus, which is our difficulty, to make technological breakthroughs. If our UI technology requirements is relatively high, it is the front-end UI implementation with better technology. If our business logic more complex, it must take the back-end business logic to do is fine. So when doing product and UI design must take the developers brought in not only to the product documentation to be able to do good, or will lead to the development of the results did not achieve the desired results.
These three points are crucial factors affecting the product line, in addition we also found that we all develop in overtime, and finally finish, technology is not really a problem. We have to reflect on what to do there is no technical risk assessment before development, to find out which one will affect the technical line. For example, third-party interfaces FBI there may be uncertainty, it would have to be prepared in advance. Or piece of business logic more complex, doing development test cycles take a long time, these must be informed in advance, so that technical risks must be made in advance, and each system has a certain degree of technical risk.
The comprehensive, demand must be clear control to close before the coordination team to be set, to assess risk, if these points, then the product will not be a problem on the line on time, even ahead of schedule. Of course, do not blindly to pressure the progress of the technical team, just appropriate to the urgency.