What are the best ways to optimize system development performance and efficiency?

Define Clear Objectives and Requirements - Start by clearly defining the project's objectives and requirements. This includes understanding the problem you're solving, user needs, and project constraints. The more precise your requirements, the less likely you are to encounter scope creep.

One essential practice we've adopted is leveraging OKRs. It's crucial for all stakeholders to understand the WHY behind our actions, not just the WHAT. While requirements may evolve, our focus should be in getting user feedback swiftly.

It is not only important to define requirements, they must also be individually specified, be measurable and described in terms of their acceptance from when they have passed a verification. Most of the time, the consequences of verification are not taken into account if acceptance is not clear.

If the system is too big then it can be broken down to small to manage effectively and to run efficiently Automotive process approach can also be used to improve the system....

Agile methodologies, such as Scrum or Kanban, can enhance development efficiency by breaking work into smaller, manageable iterations and allowing for flexibility in adapting to changing requirements.

One common mistake is not taking user-feedback and analytics into consideration before moving to the next iteration or Milestone.

Agility is usually confused with changeable goals, but that in no way corresponds to the agile manifesto. Rather, with agility, achieving the goal takes a non-predefined path in order to be able to reach the goal. With conservative planning, paths are already clearly mapped out and can no longer be changed. This is where the advantage lies in the agility of changing these paths while adhering to the goal in order to gain clarity. To find out what agility means, you should urgently read the agile manifesto, which clearly describes where the focus should be and what advantages this brings.

Basically, you should refer to standards before defining your own internal standards. If these are not sufficient, you can still adapt them for yourself and this adaptation must of course be documented and declared an internal standard. These standards are, for example, norms, frameworks, languages or methods that have been developed, reviewed, tested, applied and approved by a larger group for a specific purpose. This way you can conserve resources and avoid mistakes that someone else has already made and eliminated.

This is probably the most essential part, we tend to forget that we guide the system, not vice versa. We should continuously evaluate our processes and look for further optimization as it differ for every team/org. A process that isn't evolving is likely becoming obsolete

Within our culture, this is a given. What I've come to understand is that the cornerstone of a successful company is their continuous effort to create alignment and transparency across cross-functional teams.

Resources - To ensure those involved in the project are subject matter experts and not merely the wall decorations to ensure the project objective is achieved.

One thing that isn’t addressed is that no amount of systems performance tuning is valid without historical measurements of the system in question. Most jobs do not have consistent workloads. You can only determine if you’ve made an improvement without knowing what the behavior over time was historically. Graphs are very helpful for humans to analyze this type of data. Also, almost all complex systems interact with many aspects of the outside world. Measurement of those systems as much as possible is also very relevant in the process.