Skill building implies developing yourself and adding skills which bring value for the organization and for your own career. Ongoing learning is a keystone for making a career. Developing your skills begins with assessing which skills are important for your desired career development. If you’re aware of your strong and weak points you easily will be able to set the exact milestones for your success. You have to remember that skill development has no end, otherwise it’s useless and pointless.
Skill developing is an entire science. You have to remember that skills development should follow the 70-20-10 rule: 70% of your development should come from on-the-job activities and action learning (e.g. managing a project, serving on a cross-functional team, taking on a new task, job shadowing, job rotation, etc.); 20% of your development should come from interactions with others (mentoring, coaching, participating in communities of practice); 10% of your development (training, including classes, seminars, webinars, conferences, etc.)