- (id)init
{
    self = [super init];

    if (self)
    {
        //do some initialisations
    }

    return self;
}

+ (id)new
{
    id object = [super new];

    if (object)
    {
        //do some initialisations
    }

    return object;
}

+ (id)new
{
    return [[self alloc] init;
}

- (id) init
{
   // init code
}

- (id) initWithName:(NSString *)name
{
   // init code
}

+ (id) personWithName:(NSString *)name
{
    // add autorelease on non-ARC
    return [[super alloc] initWithName:name];
}

Person *person = [Person personWithName:@"Steve Jobs"];