Dear Colleague,
It is a very beautiful and meaningful question you raised. First of all, our appreciation for such a valid question.
Do I need to mention the missed deadlines in my self-assessment?
The answer is a little tricky in this materialistic world. It is like whether I should be honest in writing my self-appraisal or not. Here, in my view, take a practical view instead of an "idealistic view." Meeting deadlines is one measuring parameter of the KPI that was fixed for your performance evaluation. But remember that no performance evaluation tool is perfect, and at the end of the day, there are biases, mistakes, favoritism, and so on in every organization, and no one can claim their system is perfect, etc. Hence, if you are going to write all facts in the self-appraisal, it is not going to help anyone, as any appraisal is a post-mortem of what was done in the past. Therefore, write it carefully without affecting your future career and without feeling guilt. How can it be?
In your self-appraisal, begin with all the good work done by you in this specific period. You can also write about your future plans and how you wish to contribute further to the organization in a realistic and practical way. In the case of certain missed deadlines, mention it without hiding, but with valid reasons in a subtle manner, without making it the main highlight in the self-appraisal. You can also mention the support you need from the organization and the required resources. Create a draft first, rewrite it several times until you have a good draft that mainly focuses on your achievements in detail with all data points, and includes your plans to overcome shortcomings and the support required. Finally, highlight your positive contributions at the end of the report. This way, your self-appraisal will be more about contributions and less about the misses in a balanced manner, as your manager will know all the details of your performance, and you cannot hide much. But within this method, you can overcome it.
What impact will it have when I change employers, and they want copies of my previous performance evaluations?
Normally, the performance appraisal report is purely internal to the organization. When you change employers, they are more interested in the outcome rating, such as whether you were an outstanding performer, a good performer, or an average performer, or your rating on a scale like 4 out of 5 points. Therefore, the outcome is more referred to by prospective employers, and not the entire report, as it is an internal document.
In the present world, one should not be a typical Buddha but a tactful Buddha, of course, with honesty fused with how to present. The approach should be seeing the glass as half empty or half full, and you need to present yourself as the glass being half full. Be open to development and seek help from the organization to overcome known shortcomings, as they will follow you even if you change employers. The same performance measures will be there, and the race will never stop. It should be approached as a marathon and not a short run. Therefore, take concrete steps to keep learning, stay fit in health, and perform well in this competitive world to be useful to the employer and your family. God Bless!